Levitate is great when you have a Wall next to you. I’ve used it to scale towers pits and more also it makes using a ten foot pole to flip around the battlefield almost effortless or if ya pop an unseen servant and give it longstrider and a string or rope tied to you you can achieve a limited...
I've used minor illusion, to create the appearance of the cave wall about a foot and a half farther forward giving a perfect place for my caster to hide when we were storming a knoll cave. reinforcements ran right past me and never saw the fire ball coming. it still took them a minute to figure...